A new furan-2-one, namely monafuranone (1), was isolated from the EtOAc-soluble fraction of a 95% EtOH extract of the red mold rice produced by Monascus. sp. BCRC-PINK24. The structure of 1 was elucidated by spectroscopic methods, including UV, IR, HR-ESI-MS, and extensive 1D and 2D NMR techniques.
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ACKNOWLEDGMENT
This work was partially kindly supported by the Food Industry Research and Development Institute (FIRDI) and supported by the Ministry of Science and Technology, R.O.C. (MOST-108-2320-B-080-002-, MOST-109-2622-E-080-001-, and MOST-110-2320-B-080-001-). This investigation was supported by a grant from the Ministry of Economic Affairs of the Republic of China. The authors also thank Senior Technician Mrs. Chyi-Jia Wang of the Center for Resources, Research, and Development (CRRD) of Kaohsiung Medical University for measuring the 2D NMR data.
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Published in Khimiya Prirodnykh Soedinenii, No. 5, September–October, 2022, pp. 695–696.
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Cheng, MJ., Wu, MD., Kuo, YC. et al. Monafuranone, A New Furan-2-One Derivative from Monascus sp. Fermented Rice. Chem Nat Compd 58, 822–824 (2022). https://doi.org/10.1007/s10600-022-03806-7
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DOI: https://doi.org/10.1007/s10600-022-03806-7